KR100949640B1 - Washing-drying machine - Google Patents

Abstract

An object of the present invention is to improve the drying efficiency of a laundry in a laundry dryer, and to shorten the drying time.

The inner layer drum 5, the inner layer drum 5 which rotates in the outer layer drum 2, and forms a substantially cylindrical shape and constitutes the storage chamber 10 therein, and the cylinder of the inner layer drum 5 A blowout port 6 configured for 5 A of end faces in the axial direction for taking in and out of the laundry, and a peripheral end 5S of the cylinder of the inner layer drum 5 and the other end face 5B in the axial direction. In the washing operation, water flows out, and in the drying operation, the plurality of permeation holes 7 through which the circulation air for drying flows, and in the axial direction of the cylinder of the inner layer drum 5 in the drying operation. The drying air is discharged from the one end side or the other end side in the storage chamber 10, flows out from the permeation hole or the one end side of the other end side, and the drying air from the other permeation hole 7 Provide ventilation measures to prevent spills.

Laundry dryer, permeation hole, ventilation regulation means, drum, evaporator

Description

Laundry dryer {WASHING-DRYING MACHINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry dryer comprising a storage chamber for storing a laundry, and washing and drying the laundry in the storage chamber.

In recent years, the laundry dryer which automatically performs washing from drying in the storage room which accommodates a to-be-washed object is provided. Such a laundry dryer is provided with a cylindrical inner layer drum in which a plurality of permeable holes through which air and water can flow is provided in a cylindrical outer layer drum in which water can be stored, and the interior of the inner layer drum is a storage chamber in which the laundry is to be stored. The inner drum is connected to the shaft of a drive motor mounted on the main shaft of the cylindrical drum, and is rotatably held in the outer drum about the shaft.

When the laundry and the detergent according to the amount of the laundry are put into the storage chamber, and the power source and the start switch are put in, the washing operation having a plurality of different strokes such as washing, rinsing, and dehydration is first performed. In the washing step and the rinsing step of this washing operation, the detergent solution or water is stored in the outer layer drum, and the inner layer drum is rotated by the drive motor to wash or rinse the laundry in the storage chamber, and then to the lower part of the outer layer drum. The installed drain valve opens, and washing water or rinsing water is discharged. Further, in the dehydration step, the inner drum is rotated at high speed by the drive motor, so that the laundry containing moisture is pushed to the side of the inner drum, and water is separated from the laundry by centrifugal force. The water separated from the laundry is dropped from the permeation hole on the side of the inner drum to the outer drum, and discharged to the outside of the laundry dryer via the drain valve.

When the dehydration process of the said washing operation is complete | finished, the drying operation which dries the to-be-washed object is performed next. In a drying operation, heating air is discharged to a storage chamber from the discharge port provided in the end part side in the axial direction of the cylinder of an inner layer drum. The heated air discharged to the storage chamber warms the laundry to be stored in the storage chamber, evaporates moisture, and dries the laundry. The air to be washed and dried to contain moisture has flowed out of the plurality of permeation holes formed in the inner drum and is discharged to the outside of the outer drum from the suction port formed in the outer drum (see, for example, Patent Document 1 and Patent Document 2). ).

[Patent Document 1] Japanese Patent Application Laid-open No. Hei 8-229297

[Patent Document 2] Japanese Patent Application Laid-Open No. 2006-75316

As described above, in the conventional laundry dryer, in the drying operation, a large amount of air in the storage chamber is discharged from the permeation holes formed in the inner layer drum. However, as described above, a plurality of the permeation holes are formed in the entire inner layer drum. The discharged heated air was likely to flow out of the storage chamber from the permeation hole formed around the side of the inner layer drum. Since most of this air is discharged out of the outer layer drum from the suction port without returning to the storage chamber again, the laundry and the heated air in the storage chamber cannot be sufficiently brought into contact with each other. As a result, a long time is required until the laundry is dried, and the energy consumption for drying the laundry is increased, resulting in a problem of rising energy costs such as electricity bills.

This invention is made | formed in order to solve such a conventional technical subject, It aims at improving the drying efficiency of a to-be-washed object in a laundry dryer, and shortening drying time.

The laundry dryer of the present invention executes the washing operation of the laundry to be washed and the drying operation after the end of the washing operation. The inner layer which rotates in the outer layer drum and the outer layer drum and has a substantially cylindrical shape and constitutes a storage chamber therein It is formed in the drum, one end surface in the axial direction of the cylinder of this inner layer drum, and is formed in the outlet for taking out and with-washing a thing, and the periphery of the side of the cylinder of this inner layer drum, and the other end surface in the axial direction, and it carries out a washing operation. In the drying operation, a plurality of transmission holes through which the drying circulation air flows in the drying operation, and blowing means for discharging the drying air heated by the heating means in the storage chamber are provided in the drying operation. The air for drying is discharged into the storage chamber from one end side or the other end side in the axial direction of the cylinder of the inner layer drum, At the same time of flowing out of the through hole or the one end side of the end side, characterized in that provided a ventilation restricting means for preventing the leakage of the air for drying from the through holes of the other.

In the laundry dryer of Claim 2, in the said invention, ventilation control means is divided by the partition wall which divides the space between an outer drum and an inner drum into the one end side or the other end side from which drying air flows out, and a part other than that. It characterized in that the configuration.

The laundry dryer of Claim 3 comprises ventilation control means by the opening-and-closing member which closes and closes the permeation | hole periphery of the inner side drum so that opening and closing is possible in the invention of Claim 1, and said opening-and-closing member is performed by the opening-closing member in washing operation. It is characterized by opening the transmission hole and closing it in the drying operation.

In the invention of any one of Claims 1-3, the laundry dryer of Claim 4 is equipped with the refrigerant circuit in which at least the compressor, the radiator, the decompression device, and the evaporator are piped in an annular shape sequentially, The heating means is configured, and the drying air heat exchanged with the radiator in the drying operation is discharged into the storage chamber, and the air passing through the storage chamber is heat exchanged with the evaporator.

According to the present invention, in the laundry dryer for carrying out the washing operation of the laundry and the drying operation after the end of the washing operation, the outer layer drum and the outer layer drum are rotated within the outer layer drum to form a substantially cylindrical shape and constitute a storage chamber therein. It is formed in the inner side drum, the one end surface in the axial direction of the cylinder of this inner layer drum, and is formed in the outlet for taking out and with-washing a thing, and the periphery of the side of the cylinder of this inner layer drum, and the other end surface in the axial direction, and wash | cleans. In the operation, the water flows out, and in the drying operation, a plurality of transmission holes through which the drying circulation air flows, and a blowing means for discharging the drying air heated by the heating means in the storage chamber in the drying operation. And discharge drying air into the storage chamber from one end side or the other end side in the axial direction of the cylinder of the inner layer drum. Since the ventilation control means which flows out from the permeation hole or one end side of the other end side, and prevents the outflow of drying air from the other permeation hole was provided, one end side in the axial direction of the cylinder of an inner layer drum is provided. Alternatively, the problem that the drying air discharged from the other end side to the storage chamber flows out of the storage chamber from the transmission hole formed around the side surface of the inner layer drum can be solved, thereby increasing the contact time of the laundry and the drying air in the storage chamber. Will be.

As a result, the laundry can be sufficiently brought into contact with the drying air to efficiently evaporate water from the laundry. Thus, drying of the laundry can be accelerated and the drying time can be shortened.

Further, in the above invention, as in the invention of claim 2, the airflow restriction means is partitioned by a partition wall that partitions the space between the outer drum and the inner drum to one end side or the other end side to which the air for drying flows out and to other parts. When configured, it is possible to increase the contact time of the laundry and the drying air with a simple configuration. As a result, the laundry can be sufficiently brought into contact with the drying air to efficiently evaporate water from the laundry. Thus, drying of the laundry can be accelerated and the drying time can be shortened. In particular, it is possible to shorten the drying time while improving the drying efficiency by increasing the air volume of the drying air discharged to the storage chamber or increasing the contact time of the laundry to be dried and the drying air without increasing the temperature of the drying air. Therefore, the amount of power consumption can be reduced.

Further, according to the invention of claim 2, since it is possible to prevent the outflow of drying air from the permeation hole around the side of the inner layer drum with a simple configuration in which the ventilation restriction means is a partition wall without attaching a special device, the laundry dryer The manufacturing cost of can also be suppressed as much as possible.

Further, as in the invention of claim 3, the ventilation control means is constituted by an opening and closing member that closes and closes the permeation hole around the side of the inner layer drum, and the drying hole is opened by the opening and closing member in the washing operation and dried. If it is closed in operation, the drying air discharged into the storage chamber in the drying operation flows out from the permeation hole around the side of the inner layer drum while the water supply and drainage into the storage chamber in the washing operation is performed without any problems. You can certainly stop the problem.

As a result, the laundry can be sufficiently brought into contact with the drying air to efficiently evaporate water from the laundry. Thus, drying of the laundry can be accelerated and the drying time can be shortened. In particular, it is possible to shorten the drying time while improving the drying efficiency by increasing the air volume of the drying air discharged to the storage chamber or increasing the contact time of the laundry to be dried and the drying air without increasing the temperature of the drying air. Therefore, the amount of power consumption can be reduced.

In each of the above inventions, as described in claim 4, at least the compressor, the radiator, the decompression device, and the evaporator are provided with a refrigerant circuit in which pipes are connected in a sequential ring shape, and the heating means is constituted by the radiator, and the radiator in the dry operation. When the drying air heat exchanged with the gas is discharged into the storage chamber, and the air passing through the storage chamber is heat exchanged with the evaporator, the heat obtained by heat exchange with the drying air in the evaporator is returned to the radiator. Since the air for drying can be heated using heat, energy costs, such as electrical energy, can be reduced, and a more efficient drying operation can be implement | achieved.

In the conventional laundry dryer, the heating air discharged to the storage chamber flows out of the storage chamber from the permeation hole formed around the side surface of the inner layer drum, so that the laundry and the drying heating air in the storage chamber cannot be sufficiently brought into contact with each other. As a result, it is made to solve the problem of long drying operation.

The purpose of shortening the drying time while improving the drying efficiency of the object to be washed is an outer layer drum, an inner layer drum which rotates within the outer layer drum and forms a substantially cylindrical shape and constitutes a storage chamber therein, and a cylinder of the inner layer drum. It is formed in one end surface in the axial direction of the outlet, and it is formed in the outlet for taking out a to-be-washed thing, and in the circumference | surroundings of the side of the cylinder of this inner layer drum, and the other end surface in the axial direction, and water flows out in a washing operation, In the drying operation, the drying air is discharged into the storage chamber from a plurality of transmission holes through which the circulation air for drying flows, and from one end side or the other end side in the axial direction of the cylinder of the inner layer drum, While letting out from the permeation hole or one end side of the other end side, the outflow of drying air from the other permeation hole This was accomplished by providing a ventilation regulation means for preventing. EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing.

<First Embodiment>
1 is a view showing a schematic configuration of a laundry dryer W according to an embodiment of the present invention, and FIG. 2 is a diagram schematically showing a part of the laundry dryer W. As shown in FIG. The laundry dryer W is used for washing and drying laundry to be washed and dried. The opening / closing door for opening and closing the outlet 6 for opening and closing the laundry to the upper side of the main body 1 forming the outline is used. (3) is attached, and the operation panel (not shown) in which the various operation switches and a display part are arrange | positioned is provided in the main body 1 of the side of the opening / closing door 3, or upper side.

In the main body 1, an outer layer drum 2 made of water-retaining cylindrical resin is provided, and the outer layer drum 2 is disposed with the axis of the cylinder in an inclined direction. And inside this outer layer drum 2, the substantially cylindrical stainless steel inner layer drum 5 which serves as a washing tank and a dehydration tank is provided. The interior of the inner drum 5 is a storage chamber 10 for storing the object to be washed, which is also arranged with the cylinder axis in an inclined direction, and the axis is located on the side wall of the main body 1 (right side in Fig. 1). It is connected to the shaft 8 of the mounted drive motor M, and is rotatably held in the outer layer drum 2 about the said shaft 8.

Moreover, the said outlet 6 is formed in 5 A of one end surface (surface of upper left of FIG. 1) of the inner-layer drum 5, and the inner-layer drum 5 has the felt 11 and the support member 9 It is rotatably supported by this outlet 6 through this. The suction member 54 of the air circulation path 50 mentioned later is formed in the support member 9 located below this blower outlet 6. In addition, a plurality of permeation holes 7 through which air and water can flow are provided in the periphery 5S of the inner drum 5 and in the other end surface 5B (the lower right side of FIG. 1) in the axial direction. Formed. The permeation hole 7 is a hole through which water flows out in the washing operation and the drying air flows in the drying operation.

The drive motor M mentioned above has an inner layer drum centering on the shaft 8 of the same oblique direction as the axis | shaft of the outer layer drum 2 and the inner layer drum 5 in a washing operation and the drying operation after completion | finish of the said washing operation. (5) is a motor for rotating. This drive motor M is attached to one end of the said shaft 8, and the controller (not shown) rotates the inner layer drum 5 at high speed at the time of the dehydration process of washing | cleaning operation, and it dries. At the time of operation, it controls so that the inner layer drum 5 may be rotated at low speed compared with the washing operation.

On the other hand, above the outer layer drum 2 of the main body 1, the water supply passage which is not shown in figure for supplying water in the outer layer drum 2 is provided, and one end of this water supply passage is provided to water supply sources, such as tap water, via a water supply valve. Connected. The water supply valve is controlled to open and close by the controller. In addition, the other end of the water supply passage is connected to the outer drum 2, is opened above the inner drum 5 in the outer drum 2, and when the water supply valve is opened by the controller, water is supplied from the water supply source. (Tap water) is supplied into the outer layer drum 2, and this water is also supplied to the storage chamber 10 via the permeation hole 7 around the side surface 5S of the inner layer drum 5. As shown in FIG.

In addition, as shown in FIG. 2, a drain passage 12 is provided below the main body 1 as drainage means for discharging water in the outer drum 2 (including the storage chamber 10). One end of the drain passage 12 extends outside the laundry dryer W and is opened in the drain groove. Then, the other end of the drain passage 12 is bifurcated into two branches, as shown in Fig. 2, and one passage 13 is partition wall 30 described later through a drain valve 14 whose opening and closing is controlled by a controller. ) And the other end of the outer drum 2 from the other end surface 5B of the inner drum 5 to the other end 2B side of the outer drum 2. In addition, the other passage 15 is one end 2A side of the outer layer drum 2 from the partition wall 30 via the drain valve 16 controlled to be opened and closed by the controller. It communicates with the lower side of the outer layer drum 2 in which the side surface 5S is located. Moreover, the intake port 52 of the said air circulation path 50 is formed above the other end part 2B of the outer layer drum 2.

1 again, the machine room 60 is comprised from the front side to the lower side and the back side of the outer layer drum 2 in the main body 1, and the air circulation path 50 mentioned above in this machine room 60 is carried out. ) Is configured. The air circulation path 50 opens one end portion at the suction port 52 formed above the other end portion 2B of the outer layer drum 2, and passes the lower side of the outer layer drum 2 from the one end portion. The other end is opened at the air outlet port 54 formed below the air outlet port 6 of the support member 9. In this air circulation path 50, the radiator 22 and the evaporator 24 of the refrigerant circuit 20 mentioned later are provided. The radiator 22 is a heating means of the present embodiment, and is provided on the air outlet port 54 side in the air circulation path 50. The evaporator 24 is arranged on the inlet port 52 side in the air circulation path 50.

In addition, a fan 55 is provided in the air circulation path 50. The fan 55 is configured to discharge the drying air heated by the radiator 22 to the storage chamber 10 in the inner layer drum 5 from the air outlet port 54 of the air circulation path 50 in the drying operation. Blowing means. In the present embodiment, the fan 55 is disposed on the intake port 52 side which becomes the air upstream side of the evaporator 24 in the air circulation path 50.

That is, the laundry dryer W circulates the air in the storage chamber 10 by the fan 55 in the air circulation path 50 in a drying operation, and evaporates the moisture contained in the laundry to contain moisture. Air is sucked into the air circulation path 50 from the suction port 52, blown to the evaporator 24, heat exchanged with the refrigerant in the evaporator 24 to remove condensation from the air, and then blown to the radiator 22. do. Then, the drying air blown by the radiator 22 is heated by exchanging heat with the refrigerant in the radiator 22, and then discharged from the draft port 54 to the storage chamber 10 in the inner layer drum 5, and accommodated therein. The air after circulating in the chamber 10 and drying the laundry is configured to be sucked back from the suction port 52 into the air circulation path 50.

Next, reference numeral 20 denotes the above-described refrigerant circuit, and the refrigerant circuit 20 sequentially connects the compressor 21, the radiator 22, the expansion valve 23 as the pressure reducing device, the evaporator 24, and the like in a sequential loop shape. It is composed. In the refrigerant circuit 20, a predetermined amount of carbon dioxide (CO ₂ ) is sealed as a refrigerant. Here, the compressor 21 used in this embodiment is a multistage (two-stage) compression type rotary compressor, and includes an electric element in a sealed container (not shown) and a first rotary compression element 1 driven by the electric element. And second rotational compression element (second stage).

Then, the low pressure refrigerant is introduced into the first rotary compression element of the compressor 21 from the refrigerant inlet tube 25, and the high temperature and high pressure refrigerant compressed by the second rotary compression element from the refrigerant discharge tube 26 is the compressor 21. It is a structure discharged outside. In addition, the compressor 21 usable in the present invention is not limited to the multistage compression rotary compressor of the embodiment, and various other compressors such as a scroll type and a reciprocating compressor can be applied. In addition, the refrigerant encapsulated in the refrigerant circuit 20 is not limited to carbon dioxide, and the other refrigerant may be used.

The refrigerant discharge pipe 26 of the compressor 21 is connected to the inlet of the air heating radiator 22 provided on the air outlet port 54 side in the air circulation path 50. The pipe 27 exiting the radiator 22 reaches the expansion valve 23, and the pipe 28 connected to the outlet of the expansion valve 23 is an air discharge side of the fan 55 of the air circulation path 50. It is connected to the inlet of the evaporator 24 provided in the air downstream, and the refrigerant inlet tube 25 of the said compressor 21 is connected to the outlet of the evaporator 24, and this ring-shaped refrigerant circuit 20 is connected. It consists of.

In addition, operation | movement is controlled by the above-mentioned controller of the laundry dryer W of this embodiment. This controller is a control unit in charge of controlling the laundry dryer W. The controller is a driving means for driving the driving motor M, opening and closing the water supply valve of the water supply passage, opening and closing the drain valves 14 and 16 of the drain passage 12, and a compressor. The operation of the 21, the throttle adjustment of the expansion valve 23, the air volume of the fan 55, and the like are controlled. The controller also controls the drying air temperature via the radiator 22 so that the laundry to be stored in the storage chamber 10 is not discolored or damaged.

By the way, in such a laundry dryer W, the one end part of the inner-layer drum 5 in which the said suction port 54 was formed was carried out for drying heating air discharged from the draft port 54 to the storage chamber 10 in a drying operation. It is most preferable to let the inside of the storage chamber 10 pass from the side of 5A and flow out of the storage chamber 10 from the permeation hole 7 formed in the other end surface 5B. At this time, the drying air and the storage chamber 10 The laundry can be sufficiently contacted to evaporate moisture from the laundry.

However, in the conventional laundry dryer, as shown by an arrow in Fig. 11, in the drying operation, the heating holes discharged from the draft port 54 to the storage chamber 10 are formed with permeation holes formed on the side surfaces of the inner layer drum 5 ( It is easy to flow out of the storage chamber 10 from 7), and this air does not return to the storage chamber 10 again in the storage chamber 10, but the air circulation path 50 from the suction port 52 formed in the outer layer drum 2; Inhaled). Thus, when drying heating air flows, the drying air which contacts with a to-be-washed thing in a storage chamber becomes small, and the contact time with a to-be-washed material becomes short, and it becomes difficult to evaporate the water of a to-be-washed object. As a result, in the conventional laundry dryer, a long time was required before the laundry to be dried.

With such a prolonged drying time, the energy consumption for drying the dried articles also increases, and energy costs such as electricity bills increase. In addition, since the air sucked into the air circulation path 50 from the intake port 52 becomes relatively dry air that does not sufficiently contain moisture, the dehumidification efficiency in the evaporator 24 is significantly deteriorated, and the evaporator 24 is reduced. There has also been a problem that the amount of water recovery in the tank is further reduced.

Therefore, in the laundry dryer W of the present invention, as shown in Fig. 2, drying air is supplied from the one end 5A side in the axial direction of the cylinder of the inner layer drum 5 in the drying operation. 10) It is supposed to provide a ventilation regulation means for discharging into the inside, outflowing from the permeation hole 7 on the other end 5B side, and preventing outflow of drying air from the other permeation hole 7. That is, in the drying operation, the air for drying is prevented from flowing out from the permeation hole 7 other than the other end 5B side by the ventilation restricting means, thereby being discharged from the draft port 54 to the storage chamber 10. By passing the heating air for drying from one end portion 5A side of the inner layer drum 5 where the air outlet port 54 is formed to the other end portion 5B side, and letting out the permeation hole 7 formed in the other end surface 5B. do.

Specifically, in the laundry dryer W of the present embodiment, the ventilation control means uses a space between the outer drum 2 and the inner drum 5 on the other end 5B side through which the air for drying flows out and other than that. It consists of the partition wall 30 divided into parts. The partition wall 30 covers the entire circumference of the inner circumferential surface of the outer layer drum 2 corresponding to the other end surface 5B of the inner layer drum 5 or the other end surface 5B near the one end 5A side. Formed. Between the distal end of the partition wall 30 and the outer periphery of the other end surface 5B of the inner drum 5 or the side surface 5S, the partition wall 30 does not inhibit the rotation of the inner drum 5. A slight gap is formed so as to prevent it.

By this partition wall 30, the drying air discharged to the storage chamber 10 from the air outlet port 54 formed in the one end part 5A side in the axial direction of the cylinder of the inner layer drum 5 is conventionally used. As described above, it is possible to prevent the problem that the storage chamber 10 flows out from the transmission hole formed in the side surface 5S and is sucked into the air circulation path 50 from the suction port 52 without being returned to the storage chamber 10 again. . That is, according to the configuration of this embodiment, even when the air for drying once exits the storage chamber 10 from the permeation hole 7 formed around the side surface 5S, the storage chamber ( It returns to 10 and flows out from the storage chamber 10 from the permeation hole 7 formed in the other end surface 5B reliably.

Therefore, the air for drying discharged to the storage chamber 10 from the air outlet port 54 formed in the one end part 5A side by this partition wall 30 can flow to the other end part 5B side. Thereby, it becomes possible to fully contact a to-be-washed material and drying air, and to evaporate water efficiently from a to-be-washed material.

With the above configuration, the operation of the laundry dryer W will be described next. The laundry and a predetermined amount of detergent in accordance with the amount of the laundry and the laundry are injected from the outlet 6 into the storage chamber 10 in the inner layer drum 5, the opening / closing door 3 is closed, and the power supply among the operation switches described above. When the switch and the start switch are operated, the washing operation is started by the controller. As a result, the water supply valve of the water supply passage is opened to open the water supply passage. Thereby, water is supplied from the water supply source through the permeation hole 7 of the outer layer drum 2 and the inner layer drum 5. At this time, the drain valves 14 and 16 of the drain passage 12 are closed.

When a predetermined amount of hot water is stored in the storage chamber 10 in the inner layer drum 5, the water supply valve is closed by the controller and the water supply passage is closed. As a result, the supply of water from the water supply source is stopped.

Next, the drive motor M is energized and started by the controller. Thereby, the shaft 8 rotates, the inner layer drum 5 attached to this shaft 8 starts to rotate in the outer layer drum 2, and the washing process of washing operation is started. When a predetermined time elapses from the start of the washing stroke, the drive motor M is stopped by the controller, and both the drain valves 14 and 16 of the drain passage 12 are opened to accommodate the inner chamber drum 5. (10) Water (washing water) in the interior (ie, in the outer drum 2) is discharged. Here, as described above, the drain passage 12 is branched so that one passage 13 is separated from the other end surface 5B of the partition wall 30 and the inner drum 5 and the other end 2B of the outer drum 2. While installing so as to communicate with the lowest part of the outer layer drum 2 to the side, the other passage 15 is the side end of the inner layer drum 5 from the partition wall 30 on one end 2A side of the outer layer drum 2. By installing so that 5S may communicate with the lower side of the outer drum 2, the water in the outer drum 2 can be reliably discharged. In particular, by providing the partition wall 30 as in the present invention, water flowing out of the permeation hole 7 around the side surface 5S of the inner layer drum 5 and flowing down the inner circumferential surface of the outer layer drum 2 is there. Although it cannot be discharged from one passage 13 by the partition wall 30 provided in the above, the other passage 15 is provided so that the above-mentioned water can be reliably discharged from the passage 15, and the residual water in the outer layer drum 2 is retained. Can be prevented.

Then, when the water in the storage chamber 10 (in the outer drum 2) is discharged, the drive motor M is operated again by the controller to dehydrate the laundry. When this dehydration is performed for a predetermined time, both drain valves 14 and 16 of the drain passage 12 are closed to close the drain passage 12, and the process proceeds to the rinsing process.

In this rinsing step, the water supply valve of the water supply passage is first opened, and the water supply passage is opened. As a result, water is again supplied from the water supply source to the outer drum 2 and the storage chamber 10. Then, when a predetermined amount of water is supplied to the storage chamber 10 in the inner layer drum 5, the water supply valve is closed by the controller, and the water supply passage is closed. As a result, the supply of water from the water supply source is stopped.

Then, after the rotation operation of the drive motor M is repeated for a predetermined time and rinsing is performed, the drive motor M is stopped, and both drain valves 14 and 16 of the drain passage 12 are opened to accommodate the storage chamber. (10) The rinsing water (in the outer drum 2) is discharged to the drain passage 12. When the rinsing water in the storage chamber 10 (in the outer drum 2) is discharged, the drive motor M is operated by the controller, and as described above, the inner drum 5 is rotated to dehydrate the laundry. Go to administration.

After the dewatering stroke is executed for a predetermined time, both of the drain valves 14 and 16 of the drain passage 12 are closed by the controller, and the drain passage 12 is closed. In addition, the compressor 21 is started by the controller to start the operation of the fan 55, and the inner layer drum 5 is rotated by the drive motor M to transfer to the drying operation. In this way, by closing the drain valves 14 and 16 of the drain passage 12 in the drying operation, the air for drying supplied to the storage chamber 10 passes through the periphery 5S of the inner layer drum 5. Out of (7), it can return to the outer layer drum 2 via the said other channel | path 15 and one channel | path 13, and can prevent the problem which flows out without returning to the storage chamber 10 again. In addition, it is not limited to the said structure, For example, as shown in FIG. 3, instead of the drain valve 14 of the one channel | path 13, the direction of flowing the water of the outer layer drum 2 to the drain channel 12 ( In Fig. 1, a check valve 18 with a forward direction in the lower direction is provided, and instead of the drain valve 16 in the other passage 15, both passages 13 and 15 are joined (both passages ( The same effect can be obtained also when the drain valve 19 is provided in the drain channel 12 below [13,15].

On the other hand, by the start of the compressor 21, the refrigerant CO ₂ is sucked into the first rotary compression element of the compressor 21 from the refrigerant introduction pipe 25 and compressed. The refrigerant compressed by the first rotary compression element and brought into the intermediate pressure is sucked into the second rotary compression element, and the second stage compression is performed to become a high temperature and high pressure refrigerant gas, which is discharged from the refrigerant discharge pipe 26 to the outside.

The refrigerant gas discharged from the refrigerant discharge pipe 26 flows into the radiator 22 installed in the air circulation path 50. At this time, the refrigerant temperature flowing into the radiator 22 rises to about ± 85 ° C., and the high temperature and high pressure refrigerant gas radiates heat by exchanging heat with the drying air circulating in the air circulation path 50. , To about +50 ℃.

The refrigerant cooled in the radiator 22 is then depressurized in the expansion valve 23 and then dried in the evaporator 24 installed in the air circulation path 50 (air containing moisture from the receiving chamber 10). Heat exchange with] to evaporate. That is, the refrigerant circuit 20 condenses the drying air including the moisture from the storage chamber 10 in the evaporator 24 to remove moisture in the air, and at the same time, the refrigerant in the evaporator 24 uses the refrigerant. It obtains heat from the air for drying, conveys it to the radiator 22, and functions as a heat pump which heats the drying air discharged | emitted to the storage chamber 10. As shown in FIG.

In this manner, the refrigerant circuit 20 is provided to condense and remove moisture of the drying air from the storage chamber 10 in the evaporator 24, and at this time, the heat obtained from the air is conveyed to the radiator 22 by the refrigerant. By using the same for heating the drying air discharged into the storage chamber 10, the energy efficiency can be improved. In particular, since the radiator 22 can heat the drying air to a high temperature without using a special heating means such as an electric heater, it is possible to reduce energy costs such as electrical energy and to achieve a more efficient drying operation. .

Then, the refrigerant evaporated in the evaporator 24 is then circulated through the refrigerant introduction pipe 25 and sucked back into the compressor 21.

In addition, by the operation of the fan 55, the laundry to be dried in the storage chamber 10 is dried, and the air containing moisture (dry air) is transmitted to the other end surface 5B via the storage chamber 10. The storage chamber 10 flows out from the hole 7. And this air enters into the air circulation path 50 from the intake port 52 formed above the other end part 2B of the outer layer drum 2, and is sucked in by the fan 55. As shown in FIG. Thereafter, the air sucked into the fan 55 is discharged toward the evaporator 24 provided on the air discharge side of the fan 55 and passes around the evaporator 24. At this time, in the process of passing through the said evaporator 24, the air containing the moisture by drying the to-be-washed material in the storage chamber 10 heat-exchanges with the refrigerant which flows through the evaporator 24, and loses heat to a refrigerant. At this time, moisture in the air condenses on the surface of the evaporator 24. As a result, the laundry to be dried in the evaporator 24 can condense and remove moisture from the drying air containing moisture, and again, dry air can be obtained.

In addition, moisture condensed on the surface of the evaporator 24 becomes water droplets and then falls on a drain pan (not shown) provided at the lower part of the evaporator 24, and drain pipes (not shown), drain passages 12, and the like are not shown. Through the outside.

On the other hand, the drying air dried by removing moisture from the evaporator 24 is deprived of heat by the refrigerant flowing through the evaporator 24 and cooled to about + 30 ° C. Thereafter, it passes through the radiator 22 and heat-exchanges with a high-temperature, high-pressure refrigerant gas flowing through the radiator 22 to be heated to about + 75 ° C., and the outlet port of the one end surface 5A of the inner layer drum 5 is heated. It discharges into the storage chamber 10 from the suction port 54 formed below the support member 9 provided in the outer periphery of (6).

The drying air discharged to the storage chamber 10 comes into contact with the laundry to be washed in the process of flowing the storage chamber 10 from the one end portion 5A side to the other end portion 5B side, thereby warming the laundry substance to obtain moisture. Evaporate to dry the laundry.

At this time, the drying air discharged into the storage chamber 10 from the air outlet port 54 located below the one end 5A side of the inner layer drum 5 is not present in the presence of the partition wall 30 of the present invention. As a result, as shown by the arrow shown in Fig. 4, the flow flows to the other end 5B side without flowing out from the transmission hole 7 formed around the side surface 5S. In particular, even when the air for drying once exits the storage chamber 10 from the permeation hole 7 formed around the side surface 5S, the air is reliably returned to the storage chamber 10 again by the partition wall 30. Then, it flows out from the storage chamber 10 from the permeation hole 7 formed in the other end surface 5B. Therefore, the contact time of the laundry to be dried and the drying air in the storage chamber 10 can be increased.

As a result, the laundry can be sufficiently brought into contact with the drying air to efficiently evaporate water from the laundry. Thus, drying of the laundry can be accelerated and the drying time can be shortened. In particular, by increasing the air volume of the drying air discharged to the storage chamber 10 or increasing the contact time of the laundry and the drying air without increasing the temperature of the drying air, the drying time is improved while improving the drying efficiency. Since it can shorten, power consumption can be reduced.

Then, the laundry to be dried in the storage chamber 10 and air containing moisture flow out from the permeation hole 7 formed in the other end surface 5B of the inner layer drum 5, so that the intake port of the outer layer drum 2 ( The cycle drawn from 52 into the air circulation path 50 is repeated.

At this time, the air sucked into the air circulation path 50 from the suction port 52 according to the present invention becomes air containing sufficient moisture deprived of the water to be washed in the storage chamber 10. In particular, at the beginning of the drying operation, the air can be brought close to the saturation state. As a result, the dehumidification efficiency in the evaporator 24 is improved, and the amount of water recovered in the evaporator 24 is also increased. Therefore, the drying efficiency of the laundry can be further improved, and the drying time can be shortened.

Moreover, in this invention, the outflow of drying air from the permeation | transmission hole 7 around the side surface 5S of the inner layer drum 5 by the simple structure of installing the partition wall 30 is carried out, without attaching a special apparatus. Since it can prevent, the manufacturing cost of the laundry dryer W can be suppressed as much as possible.

In addition, in this embodiment, the suction port 54 is formed below the one end part 5A side of the inner layer drum 5, and above the other end part 2B of the outer layer drum 2 which is the other end part 5B side. The inlet port 52 is formed, and the drying air heated by the radiator 22 of the air circulation path 50 is discharged from the one end 5A side into the storage chamber 10 and permeated to the other end 5B side. Although it is supposed to flow out from the hole 7, this invention is not limited to this, The drying air is supplied from the one end part 5A side or the other end part 5B side in the axial direction of the cylinder of the inner layer drum 5. It is effective as long as it discharges into the storage chamber 10 and flows out from the permeation hole 7 or the one end part 5A side of the other end part 5B side.

For example, as shown in FIG. 5, a suction port 54 is formed above one end 2A of the outer drum 2 on the one end 5A side of the inner drum 5, and the inner drum 5 is formed. An inlet 52 is formed at a position below the other end 2B of the outer drum 2 on the other end 5B side of the outer layer drum 2 and above the water level in the washing operation, and the air circulation path 50 as shown by the arrow. The air for drying heated by the radiator 22 of () may be discharged into the storage chamber 10 from above the one end 5A side, and may flow out from the permeation hole 7 on the other end 5B side.

In addition, as shown in Fig. 6, a suction port 54 is formed above the other end 2B of the outer drum 2, which is the other end 5B side of the inner drum 5, and one end of the inner drum 5 is formed. An inlet 52 is formed below one end 2A of the outer layer drum 2 on the side of the part 5A, and the drying air heated by the radiator 22 of the air circulation path 50 is connected to the other end ( It may be made to discharge into the storage chamber 10 from above 5B) side, and to flow out from one end part 5A side.

In addition, as shown in FIG. 7, the suction port is located below the other end 2B of the outer drum 2, which is the other end 5B side of the inner drum 5, and is located above the water level in the washing operation. 54 is formed, and an inlet 52 is formed above one end 2A of the outer drum 2, which is one end 5A side of the inner drum 5, to form an air circulation path 50 as shown by an arrow. The drying air heated by the radiator 22 is discharged from the lower end of the other end 5B into the storage chamber 10 and flows out from the one end 5A.

In addition, as shown in FIG. 8 or FIG. 9, the inlet port 52 or the outlet port 54 is formed in the outlet 6 of the one end surface 5A of the inner layer drum 5, and it is the other end 5B side. A suction port 54 or a suction port 52 is formed in the vicinity of the shaft 8 of the other end 2B of the outer drum 2, and the air circulation path 50 is as shown by the arrows shown in Figs. Of the drying air heated by the heat radiator 22 is discharged into the storage chamber 10 from the outlet 6 near the center of the other end 5B side or one end 5A side, and on the one end 5A side. It is good also as letting out from the permeation hole 7 of the blowout opening 6 or the other end 5B. In addition, it is not limited to each said example, The other structure does not interfere, either.

Second Embodiment

Moreover, in the said 1st Example, the partition which divides the space between the outer drum 2 and the inner drum 5 as the ventilation control means by the other end part 5B side where the drying air flows out, and a part other than that. Although the wall 30 is comprised, this invention is effective even if it comprises the ventilation control means by the opening-and-closing member which closes and closes the permeation | transmission hole 7 around the side surface 5S of the inner layer drum 5 so that opening and closing is possible. . Fig. 10 is a schematic diagram of the outer layer drum 2 and the interior thereof of the laundry dryer Y showing one example. In the present embodiment, the opening / closing member for closing the permeation hole 7 around the side surface 5S of the inner layer drum 5 so as to be openable and closed is constituted by the plurality of valves 80. In addition, only the structure which used the opening-closing member as ventilation control means of the laundry dryer Y of this embodiment differs from the laundry dryer W of the said 1st Example, and all the other structure, operation | movement, etc. are the said laundry dryer ( Since it is the same as W), description is abbreviate | omitted here and only operation | movement of the valve 80 different from the above is demonstrated.

Here, the operation of the valve 80 is made of a shape memory alloy which functions in a predetermined temperature range (+ 40 ° C or higher in this embodiment). That is, when the temperature of the said valve 80 is lower than +40 degreeC, the valve 80 of this embodiment keeps the permeation | transmission hole 7 open, and will deform | transform when it reaches the temperature range of +40 degreeC or more It is assumed that the through hole 7 is blocked.

In the washing operation, since the valve 80 is lower than + 40 ° C, the permeation hole 7 around the side surface 5S of the inner layer drum 5 is opened. Thereby, the water supply and drainage into the storage chamber 10 in washing operation can be performed without a trouble. In the drying operation, when the storage chamber 10 is heated by the supply of heating air, and the temperature of the valve 80 is at a temperature range of + 40 ° C. or more, the valve 80 functions to function as the inner drum 5. The perforation hole 7 around the side surface 5S of is closed. Thereby, the problem that the drying air discharged into the storage chamber 10 flows out from the permeation | transmission hole 7 around the side surface 5S of the inner layer drum 5 is solved reliably, and the one end part of the inner layer drum 5 is removed. The drying air discharged to the storage chamber 10 from the suction port 54 formed in 5A can flow to the other end part 5B side.

Therefore, in the same manner as in the above embodiment, the laundry and the drying air can be sufficiently brought into contact with each other to efficiently evaporate water from the laundry. Thus, drying of the laundry can be accelerated and the drying time can be shortened. In particular, drying time is improved while improving the drying efficiency by increasing the contact time of the laundry and drying air without increasing the air volume of the drying air discharged to the storage chamber 10 or increasing the temperature of the drying air. Since the power consumption can be shortened, the amount of power consumption can be reduced.

In addition, the air sucked into the air circulation path 50 from the intake port 52 becomes air containing sufficient moisture which desorbs water from the laundry to be stored in the storage chamber 10. In particular, at the beginning of the drying operation, the air can be brought close to the saturation state. As a result, the dehumidification efficiency in the evaporator 24 is improved, and the amount of water recovered in the evaporator 24 is also increased. Therefore, the drying efficiency of the laundry can be further improved, and the drying time can be shortened.

In the present embodiment, the valve 80 is formed of a shape memory alloy that functions in a predetermined temperature range (+ 40 ° C or higher in this embodiment). The same effect can be acquired even if it is comprised by the member which blocks (7).

In addition, also in the present embodiment, similarly to the above embodiment, drying air is introduced into the storage chamber 10 from one end 5A side or the other end 5B side in the axial direction of the cylinder of the inner layer drum 5. It is effective as long as it discharges and flows out from the permeation hole 7 or the one end part 5A side of the other end part 5B side, and it is effective in the various inlet port 52 and the inlet port 54 as demonstrated in FIG. The configuration of is applicable.

Further, in the laundry dryers W and Y of the above embodiments, the refrigerant circuit 20 is provided to heat the drying air discharged to the storage chamber 10 by the radiator 22 of the refrigerant circuit 20. In the evaporator 24, the water taken from the laundry in the storage chamber 20 is condensed and removed from the air. However, in the invention of claims 1 to 3, the refrigerant circuit 20 is not provided, for example, an electric heater. It is effective even if it heats drying air by etc. In addition, arrangement | positioning of the fan 55 in the air circulation path 50 is not limited to an Example, It may be between the radiator 22 and the evaporator 24, and is provided in the air outlet port 54 side of the radiator 22, There is no obstacle.

1 is a schematic configuration diagram (first embodiment) of one embodiment of a laundry dryer of the present invention.

FIG. 2 is a view schematically showing a part of the laundry dryer of FIG. 1; FIG.

FIG. 3 is a diagram showing another example of the drain passage of FIG. 2; FIG.

FIG. 4 is a diagram showing the flow of drying air in the storage chamber of the laundry dryer of FIG. 1; FIG.

Fig. 5 is a diagram showing the flow of drying air in the storage chamber of the second laundry dryer of the present invention.

Fig. 6 is a diagram showing the flow of drying air in the storage chamber of the third laundry dryer of the present invention.

Fig. 7 is a diagram showing the flow of drying air in the storage chamber of the fourth laundry dryer of the present invention.

Fig. 8 is a diagram showing the flow of drying air in the storage chamber of the fifth laundry dryer of the present invention.

Fig. 9 is a diagram showing the flow of drying air in the storage chamber of the sixth laundry dryer of the present invention.

Fig. 10 is a diagram schematically showing a part of another embodiment of the laundry dryer of the present invention (second embodiment).

Fig. 11 is a diagram showing a flow of drying air in a storage chamber of a conventional laundry dryer.

<Explanation of symbols for the main parts of the drawings>

W, Y: Laundry Dryer

1: main body

2: outer layer drum

2A: One end

2B: other end

5: inner layer drum

5A: One end (one end)

5B: other end (other end)

5S: side

7: penetration hole

10: accommodation room

12: drainage passage

20: refrigerant circuit

21: compressor

22: radiator

23: expansion valve

24: evaporator

50: air circulation path

52: inlet

54: outlet

55: fan

Claims (4)

In the laundry dryer which performs the washing operation of a to-be-washed object and the drying operation after completion | finish of the said washing operation, With outer drum, An inner layer drum which rotates in the outer layer drum and forms a substantially cylindrical shape and constitutes a storage chamber therein; A blowout port configured to be provided at one end surface in the axial direction of the cylinder of the inner layer drum, for taking in and out the laundry; A plurality of permeation holes formed around the side surface of the cylinder of the inner layer drum and the other end surface in the axial direction, in which water flows out in the washing operation, and in which drying circulation air flows in the drying operation; In the drying operation, provided with blowing means for discharging the drying air heated by the heating means into the storage chamber, The drying air is discharged into the storage chamber from one end side or the other end side in the axial direction of the cylinder of the inner layer drum, flows out from the transmission hole or one end side of the other end side, and the other permeation holes. And a ventilation restricting means for preventing the outflow of drying air from the washing machine. The said ventilation control means is comprised by the partition wall which divides the space between the said outer-layer drum and an inner-layer drum into the one end side or the other end side from which drying air flows out, and a part other than that. Laundry dryer. The said ventilation control means is comprised by the opening-and-closing member which closes and closes the said permeation hole around the side surface of the said inner layer drum, and opens the said permeation hole by the said opening-and-closing member in the said washing operation. At the same time, the laundry dryer is closed in the drying operation. The refrigerant circuit according to any one of claims 1 to 3, further comprising a refrigerant circuit in which at least a compressor, a radiator, a pressure reducing device, and an evaporator are connected in a sequential ring shape. The heating means constitutes the heating means, and in the drying operation, the drying air heat exchanged with the radiator is discharged into the storage chamber, and the air passing through the storage chamber is exchanged with the evaporator. A laundry dryer characterized by the above.

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